Protective drainage wraps

• US 20050287338A1
• Filed: 08/26/2005
• Published: 12/29/2005
• Est. Priority Date: 02/20/2001
• Status: Active Grant

• Current Assignee: Kingspan Insulation LLC (Kingspan Group PLC)
• Original Assignee: Pactiv
• Inventors: Lubker, John W. II
• Granted Patent: US 8,334,223 B2
• Time in Patent Office: Days
• US Class Current: 428/131
• CPC Class Codes: B32B 2262/0253 Polyolefin fibres
• CPC Class Codes: B32B 2262/0261 Polyamide fibres
• CPC Class Codes: B32B 2262/0276 Polyester fibres
• CPC Class Codes: B32B 2307/724 Permeability to gases, adsorption
• CPC Class Codes: B32B 2307/726 Permeability to liquids, absorption
• CPC Class Codes: B32B 2323/04 Polyethylene
• CPC Class Codes: B32B 2323/10 Polypropylene
• CPC Class Codes: B32B 2419/00 Buildings or parts thereof
• CPC Class Codes: B32B 27/02 in the form of fibres or filaments not used
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/32 comprising polyolefins comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30
• CPC Class Codes: B32B 27/34 comprising polyamides
• CPC Class Codes: B32B 27/36 comprising polyesters
• CPC Class Codes: B32B 5/028 Net structure, e.g. spaced apart filaments bonded at the crossing points
• CPC Class Codes: B32B 5/08 the fibres or filaments of a layer being of different substances , e.g. conjugate fibres, mixture of different fibres
• CPC Class Codes: B32B 5/12 characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
• CPC Class Codes: B32B 5/26 another layer next to it also being fibrous or filamentary relative arrangement of fibres or filaments of different layers B32B5/12
• CPC Class Codes: D03D 15/00 Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
• CPC Class Codes: D03D 15/283 synthetic polymer-based, e.g. polyamide or polyester fibres cellulose-based artificial fibres D03D15/225
• CPC Class Codes: D03D 15/46 : Flat yarns, e.g. tapes or films
• CPC Class Codes: D03D 9/00 : Open-work fabrics
• CPC Class Codes: D06M 15/21 : Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: D06M 15/507 : Polyesters
• CPC Class Codes: D06M 15/59 : Polyamides; Polyimides
• CPC Class Codes: D06N 2209/125 : Non-permeable
• CPC Class Codes: D06N 2211/06 : Building materials
• CPC Class Codes: D06N 2213/04 : Perforated layer
• CPC Class Codes: D06N 3/0002 : characterised by the substrate
• CPC Class Codes: D06N 3/045 : with polyolefin or polystyrene (co-)polymers
• CPC Class Codes: D06N 3/123 : with polyesters
• CPC Class Codes: D06N 3/125 : with polyamides
• CPC Class Codes: D06N 7/00 : Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material paper-based or board-based structures for surface covering D21H27/20
• CPC Class Codes: D10B 2321/02 : polyolefins
• CPC Class Codes: D10B 2321/021 : polyethylene
• CPC Class Codes: D10B 2321/022 : polypropylene
• CPC Class Codes: D10B 2331/02 : polyamides D10B2331/08 takes precedence
• CPC Class Codes: D10B 2331/04 : polyesters, e.g. polyethylene terephthalate [PET]
• CPC Class Codes: D10B 2401/10 : porous
• CPC Class Codes: D10B 2505/00 : Industrial
• CPC Class Codes: D10B 2505/20 : for civil engineering, e.g. geotextiles
• CPC Class Codes: E04B 1/625 : Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps
• CPC Class Codes: E04F 13/04 : Bases for plaster sub-ceilings with plaster-carrying means E04B9/06
• CPC Class Codes: E04F 13/047 : Plaster carrying meshes
• CPC Class Codes: E04F 13/0864 : composed of superposed elements which overlap each other and of which the flat outer surface includes an acute angle with the surface to cover
• CPC Class Codes: Y10T 428/24273 : including aperture
• CPC Class Codes: Y10T 428/24322 : Composite web or sheet
• CPC Class Codes: Y10T 428/24331 : including nonapertured component
• CPC Class Codes: Y10T 428/24355 : Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
• CPC Class Codes: Y10T 428/263 : Coating layer not in excess of 5 mils thick or equivalent
• CPC Class Codes: Y10T 428/264 : Up to 3 mils
• CPC Class Codes: Y10T 428/265 : 1 mil or less
• CPC Class Codes: Y10T 442/172 : Coated or impregnated
• CPC Class Codes: Y10T 442/2139 : Coating or impregnation specified as porous or permeable to a specific substance [e.g., water vapor, air, etc.]
• CPC Class Codes: Y10T 442/2148 : Coating or impregnation is specified as microporous but is not a foam
• CPC Class Codes: Y10T 442/3033 : Including a strip or ribbon
• CPC Class Codes: Y10T 442/3041 : Woven fabric comprises strips or ribbons only
• CPC Class Codes: Y10T 442/322 : Warp differs from weft
• CPC Class Codes: Y10T 442/3854 : Woven fabric with a preformed polymeric film or sheet
• CPC Class Codes: Y10T 442/3862 : Ester condensation polymer sheet or film [e.g., polyethylene terephthalate, etc.]
• CPC Class Codes: Y10T 442/3886 : Olefin polymer or copolymer sheet or film [e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.]

Abstract

A protective drainage wrap includes a mesh and a coating applied to the mesh. The coating is applied to the mesh to form a plurality of interstices, the interstices being configured to facilitate transfer of water vapor therethrough. The mesh includes material extending in a first direction and in a second direction. The material in the first direction includes a polyolefin, polyester, nylon or combinations thereof and has a first thickness. The material in the second direction includes a polyolefin, polyester, nylon or combinations thereof and has a second thickness. The second thickness is at least about twice the first thickness so as to assist in providing drainage for moisture build-up. The material in the second direction can be yarn. The coating includes a polyolefin, polyester, nylon or combinations thereof. A process for the preparation of the protective drainage wrap is provided.

Claims

1. A protective drainage wrap including:

a mesh having material extending in a first direction and in a second direction, the material in the first direction including a polyolefin, polyester, nylon or combinations thereof, the material in the second direction including a polyolefin, polyester, nylon or combinations thereof; and

a coating applied to the mesh to form a plurality of interstices, the interstices being configured to facilitate transfer of water vapor therethrough.

2. The protective drainage wrap of claim 1, wherein the coating includes a polyolefin, polyester, nylon or combinations thereof.

3. The protective drainage wrap of claim 1, wherein the wrap includes a plurality of perforations formed therethrough.

4. The protective drainage wrap of claim 3, wherein the perforations are between about 3 mils to 15 mils.

5. The protective drainage wrap of claim 1, wherein the coating has a thickness between about 0.5 mil and 2.0 mils.

6. The protective drainage wrap of claim 1, wherein the first direction material and coating have a combined thickness between about 8 mils and 10 mils.

7. The protective wrap of claim 1, wherein the mesh is cross-woven.

8. The protective wrap of claim 1, wherein the mesh is cross-laminated.

9. The protective wrap of claim 1, wherein the first direction material and the second direction material include a plurality of tapes.

10. The protective wrap of claim 1, wherein the first direction material has a first thickness, the second direction material has a second thickness, and the second thickness is at least about twice the first thickness.

11. The protective wrap of claim 1, wherein the permeability of the protective drainage wrap is controlled by applying the coating with a predetermined thickness to the mesh to form a plurality of interstices of predetermined size.

12. The protective wrap of claim 1, wherein the first direction material and the second direction material are the same.

13. The protective wrap of claim 1, wherein the first direction material and the second direction material are different.

14. The protective wrap of claim 1, wherein the second direction material is yarn.

15. A method for forming a protective drainage wrap including:

providing a mesh having material extending in a first direction and in a second direction, the material in the first direction including a polyolefin, polyester, nylon or combinations thereof, the material in the second direction including a polyolefin, polyester, nylon or combinations thereof; and

applying a coating to the mesh to form a plurality of interstices configured to facilitate transfer of water vapor therethrough.

16. The method of claim 15, further including the step of controlling the permeability of the protective drainage wrap by applying the coating with a predetermined thickness to the mesh to form a plurality of interstices of predetermined size.

17. The method of claim 15, wherein the coating includes a polyolefin, polyester, nylon or combinations thereof.

18. The method of claim 15, further including making a plurality of perforations through the protective drainage wrap.

19. The method of claim 18, wherein the perforations are between about 3 mils to 15 mils.

20. The method of claim 15, wherein the applied coating has a thickness between about 0.5 mil and 2.0 mils.

21. The method of claim 15, wherein the first direction material and coating have a combined thickness between about 8 mils and 10 mils.

22. The method of claim 15, wherein the mesh is cross-woven.

23. The method of claim 15, wherein the mesh is cross-laminated.

24. The method of claim 15, wherein the first direction material and the second direction material are made from a plurality of tapes.

25. The method of claim 15, wherein the first direction material has a first thickness, the second direction material has a second thickness, and the second thickness is at least about twice the first thickness.

26. The method of claim 15, wherein the first direction material and the second direction material are the same.

27. The method of claim 15, wherein the first direction material and the second direction material are different.

28. The method of claim 15, wherein the second direction material is yarn.